/// <summary>
        /// 获取实体
        /// </summary>
        public Model.contact GetContactModel(int id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select  top 1 * from dt_contact ");
            strSql.Append(" where id=@id ");

            SqlParameter[] parameters = {
                    new SqlParameter("@id", SqlDbType.Int,4)};
            parameters[0].Value = id;

            Model.contact model = new Model.contact();
            DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
            if (ds.Tables[0].Rows.Count > 0)
            {
                #region  DATA
                if (ds.Tables[0].Rows[0]["id"] != null && ds.Tables[0].Rows[0]["id"].ToString() != "")
                {
                    model.id = int.Parse(ds.Tables[0].Rows[0]["id"].ToString());
                }

                if (ds.Tables[0].Rows[0]["title"] != null && ds.Tables[0].Rows[0]["title"].ToString() != "")
                {
                    model.title = ds.Tables[0].Rows[0]["title"].ToString();
                }

                if (ds.Tables[0].Rows[0]["address"] != null && ds.Tables[0].Rows[0]["address"].ToString() != "")
                {
                    model.address = ds.Tables[0].Rows[0]["address"].ToString();
                }

                if (ds.Tables[0].Rows[0]["shop_hours"] != null && ds.Tables[0].Rows[0]["shop_hours"].ToString() != "")
                {
                    model.shop_hours = ds.Tables[0].Rows[0]["shop_hours"].ToString();
                }

                if (ds.Tables[0].Rows[0]["telephone"] != null && ds.Tables[0].Rows[0]["telephone"].ToString() != "")
                {
                    model.telephone = ds.Tables[0].Rows[0]["telephone"].ToString();
                }

                if (ds.Tables[0].Rows[0]["mobile"] != null && ds.Tables[0].Rows[0]["mobile"].ToString() != "")
                {
                    model.mobile = ds.Tables[0].Rows[0]["mobile"].ToString();
                }

                if (ds.Tables[0].Rows[0]["remark1"] != null && ds.Tables[0].Rows[0]["remark1"].ToString() != "")
                {
                    model.remark1 = ds.Tables[0].Rows[0]["remark1"].ToString();
                }

                if (ds.Tables[0].Rows[0]["remark2"] != null && ds.Tables[0].Rows[0]["remark2"].ToString() != "")
                {
                    model.remark2 = int.Parse(ds.Tables[0].Rows[0]["remark2"].ToString());
                }

                if (ds.Tables[0].Rows[0]["sort_id"] != null && ds.Tables[0].Rows[0]["sort_id"].ToString() != "")
                {
                    model.sort_id = int.Parse(ds.Tables[0].Rows[0]["sort_id"].ToString());
                }

                if (ds.Tables[0].Rows[0]["add_time"] != null && ds.Tables[0].Rows[0]["add_time"].ToString() != "")
                {
                    model.add_time = DateTime.Parse(ds.Tables[0].Rows[0]["add_time"].ToString());
                }

                #endregion
                return model;
            }
            else
            {
                return null;
            }
        }
        private bool DoAdd()
        {
            bool result = true;
            Model.contact model = new Model.contact()
            {
                address = txtAddress.Text.Trim(),
                mobile = txtMobile.Text.Trim(),
                remark1 = "",
                remark2 = 0,
                shop_hours = txtHours.Text.Trim(),
                sort_id = int.Parse(txtSortId.Text.Trim()),
                telephone = txtTel.Text.Trim(),
                title = txtTitle.Text.Trim(),
                 add_time= DateTime.Now

            };

            if (bll.Add(model) < 1)
            {
                result = false;
            }
            return result;
        }